http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-104841286-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D71-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D69-08 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D67-00 |
| filingDate | 2015-05-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2017-03-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2017-03-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-104841286-B |
| titleOfInvention | A kind of helical form inorganic hollow fibers film and preparation method thereof |
| abstract | The invention belongs to inorganic membrane technology field, specially a kind of for helical form inorganic hollow fibers film and preparation method thereof.The basic step of preparation method of the present invention is：Prepare the casting solution containing inorganic powder material, polymeric binder, solvent and additive；The inorganic hollow fibers film presoma with composite membrane unsymmetric structure is prepared by spinning phase inversion；Doughnut film precursor uniform winding is shaped in quartz or ceramic die, curl inorganic hollow fibers film is fired by certain sintering procedure under particular atmosphere.The present invention adds softening agent in casting solution, improves doughnut film precursor pliability, and by particular mold sizing sintering.The hollow-fibre membrane of preparation has the screw type profile of spring shape, the internal unsymmetric structure for typical composite membrane porous layer+separating layer, can overcome the restriction that expands with heat and contract with cold in alternating temperature operation, preparation process is simple, require without complex device, be easy to industrialized production. |
| priorityDate | 2015-05-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 33.